2155. There resides in the osseous and in the muscular system no cause for a diversity in the two halves of the body. Thus, if there be a difference, it must only reside in the asymmetrical galvanic systems.
3. Organs.
2156. Organs are parts of an anatomical system, which separating, combine with a part of another system, and thereby obtain a peculiar or special function.
2157. For each system therefore there are as many organs, as there are possible combinations of systems. There are vascular, intestinal, pulmonary, sexual and tegumentary organs, with furthermore, osseous, muscular and nervous organs.
1. INTESTINAL ORGANS.
2158. The intestinal or splanchnic system falls first of all into three great divisions, into that of the viscera, the sex and the head; the visceral intestine separates moreover into pulmonic, venous and tegumentary intestine, and this in constant accordance with its combinations and functions.
a. Visceral Intestine.
2159. In the digestive system it is the chemical process that takes precedence. This, however, divides into three moments, into that of solution, separation and formation, or crystallization, which is here absorption. Thus the intestine separates also into a solvent, secernent and absorbent intestine, and that indeed through its combination with the pulmonic, vascular and tegumentary system. The solvent viscus is the stomach, the second or secernent, the duodenum, the third or absorbent, the small intestine (jejunum and ileum).
Pulmonic Intestine.